But to be able to have the alarm clocks play them it is important to upload them to the alarm clocks. You can do that as follows:
cd /your/path/francesca/music_files
then:
scp noise1.wav ubunut@radio3:/media/mnt/
and press enter. You should see the progress of the upload.
In the example above we copied the file noise1.wav to radio3. You can repeat the command with different .wav files to different radios by replacing the title of the file and the radio number. For example, to copy to radio2:
scp noise1.wav ubunut@radio2:/media/mnt/